Problem Accessing Service Desk API

[Himanshu Sharma]

I have a service desk for my customer, and i have created various users in that service desk for users to log issue.

In my application I want my users to log issues from my application itself into service desk, using their credentials, but I m getting authentication error. But it works same when i use my admin credentials. 

So, my question is can i use the Service desk APIs using the customer's credentials which I have created for respective Service desk?

[Nic Brough -Adaptavist-]

Yes, you can use the customer credentials to do things with the API.

You'll need to explain what your code is doing when it tries to authenticate, and give us the full error message.

[Himanshu Sharma]

@Nic Brough [Adaptavist] Thanks for reply.

Code I m using is : (I m getting all service desk user belongs to, Using basic authentication)

private static String makeGetRequestToServiceDesk(String userName, String password, String requestUrl) 
    		throws ServiceDeskAuthenticationException, ServiceDeskAuthorizationException {
    	InputStream in = null;
    	HttpURLConnection conn = null;
    	try{
    		String base64Creds = getAuthenticationHeaderForServiceDesk(userName, password);
    		
    		URL url = new URL(SERVICE_DESK_URL + requestUrl);
	        conn = (HttpURLConnection) url.openConnection();
	        conn.setConnectTimeout(5000);
	        conn.setRequestProperty("Authorization", "Basic " + base64Creds);
	        conn.setRequestMethod("GET");
	        int code = conn.getResponseCode();
	        if(code == SERVICEDESK_AUTHENTICATION_ERROR_CODE) {
	        	throw new ServiceDeskAuthenticationException("Failed to authenticate user.");
	        }
	        if(code == SERVICEDESK_AUTHORIZATION_ERROR_CODE) {
	        	throw new ServiceDeskAuthorizationException("Failed to authorize user.");
	        }
	        in = new BufferedInputStream(conn.getInputStream());
	        String result = IOUtils.toString(in, "UTF-8");
	        
	        in.close();
	        String a = "";
	        return result;
		} catch (IOException e) {
			Activator.logError("Error making GET request to service desk: ",
					MessageSupport.getExceptionMessages(e));
		}
    	finally {
	        conn.disconnect();
		}
		return null;
    }

Error I m getting is: 

java.io.IOException: Server returned HTTP response code: 401 for URL: https://provartesting.atlassian.net/rest/servicedeskapi/servicedesk